"""Tests für SmtcController (Windows/SMTC)."""

import sys
from unittest.mock import AsyncMock, MagicMock

import pytest

pytestmark = pytest.mark.skipif(
    sys.platform != "win32", reason="SMTC is Windows-only"
)

if sys.platform == "win32":
    from winrt.windows.media.control import (
        GlobalSystemMediaTransportControlsSessionPlaybackStatus as Status,
    )
    PLAYING = Status.PLAYING
    PAUSED = Status.PAUSED


def _make_session(aumid: str, status) -> MagicMock:
    """Erzeugt eine gemockte SMTC-Session mit gegebenem PlaybackStatus."""
    session = MagicMock()
    session.source_app_user_model_id = aumid
    info = MagicMock()
    info.playback_status = status
    session.get_playback_info = MagicMock(return_value=info)
    session.try_pause_async = AsyncMock()
    session.try_play_async = AsyncMock()
    return session


def _make_manager(sessions: list) -> MagicMock:
    """Erzeugt einen gemockten SMTC-Manager mit gegebenen Sessions."""
    manager = MagicMock()
    manager.get_sessions = MagicMock(return_value=sessions)
    return manager


@pytest.mark.asyncio
async def test_pause_is_noop_when_smtc_unreachable(monkeypatch, caplog):
    from whisper_local.media._smtc import SmtcController

    controller = SmtcController()
    monkeypatch.setattr(
        controller,
        "_ensure_manager",
        AsyncMock(side_effect=RuntimeError("kein SMTC")),
    )

    with caplog.at_level("WARNING"):
        await controller.pause()

    assert controller._paused == []
    assert any("SMTC" in r.message or "smtc" in r.message.lower() for r in caplog.records)


@pytest.mark.asyncio
async def test_pause_skips_reconnect_after_smtc_failure(monkeypatch):
    from whisper_local.media._smtc import SmtcController

    call_count = 0

    async def failing_ensure():
        nonlocal call_count
        call_count += 1
        raise RuntimeError("kein SMTC")

    controller = SmtcController()
    monkeypatch.setattr(controller, "_ensure_manager", failing_ensure)

    await controller.pause()
    await controller.pause()
    await controller.pause()

    assert call_count == 1


@pytest.mark.asyncio
async def test_pause_with_no_sessions_is_noop(monkeypatch):
    from whisper_local.media._smtc import SmtcController

    controller = SmtcController()
    monkeypatch.setattr(
        controller, "_ensure_manager", AsyncMock(return_value=_make_manager([]))
    )

    await controller.pause()

    assert controller._paused == []


@pytest.mark.asyncio
async def test_pause_pauses_all_playing_sessions(monkeypatch):
    from whisper_local.media._smtc import SmtcController

    s1 = _make_session("Spotify", PLAYING)
    s2 = _make_session("msedge", PLAYING)
    controller = SmtcController()
    monkeypatch.setattr(
        controller,
        "_ensure_manager",
        AsyncMock(return_value=_make_manager([s1, s2])),
    )

    await controller.pause()

    s1.try_pause_async.assert_awaited_once()
    s2.try_pause_async.assert_awaited_once()
    assert controller._paused == ["Spotify", "msedge"]


@pytest.mark.asyncio
async def test_pause_skips_already_paused_sessions(monkeypatch):
    from whisper_local.media._smtc import SmtcController

    playing = _make_session("Spotify", PLAYING)
    already_paused = _make_session("msedge", PAUSED)
    controller = SmtcController()
    monkeypatch.setattr(
        controller,
        "_ensure_manager",
        AsyncMock(return_value=_make_manager([playing, already_paused])),
    )

    await controller.pause()

    playing.try_pause_async.assert_awaited_once()
    already_paused.try_pause_async.assert_not_awaited()
    assert controller._paused == ["Spotify"]


@pytest.mark.asyncio
async def test_pause_logs_and_continues_when_session_fails(monkeypatch, caplog):
    from whisper_local.media._smtc import SmtcController

    broken = _make_session("broken", PLAYING)
    broken.try_pause_async = AsyncMock(side_effect=RuntimeError("Verbindung verloren"))
    good = _make_session("Spotify", PLAYING)
    controller = SmtcController()
    monkeypatch.setattr(
        controller,
        "_ensure_manager",
        AsyncMock(return_value=_make_manager([broken, good])),
    )

    with caplog.at_level("WARNING"):
        await controller.pause()

    good.try_pause_async.assert_awaited_once()
    assert controller._paused == ["Spotify"]
    assert any("broken" in r.message for r in caplog.records)